Herakleidios’s name day is September 17, the feast of Herakleidios and Myron of Tamassos.
Churches that follow the Old (Julian) Calendar keep the same feast on September 30 of the civil calendar. See everything commemorated on September 17.
The saint behind the name
Herakleidios and Myron of Tamassos
September 17, Hierarch, Ηρακλείδιος και Μύρων
St. Herakleidios was a native of Cyprus who, according to tradition, guided the Apostles Paul and Barnabas across the island and was ordained by them bishop of Tamassos, the first in that see. He labored to bring the Cypriots to Christ, and his disciple Myron succeeded him as bishop.
Name days: Herakleidios, Iraklidios, Heraclides, Iraklidis
Also celebrating on September 17
These names share the feast, many of them other forms of the same name:
Iraklidios, Heraclides, Iraklidis
What to say on a name day
The Greek wish is Χρόνια Πολλά (Chronia Polla), “many years.” A call or a short message on the day is what people remember. See name day wishes you can send and what a name day is.